Journal-box.



R. H. BOWEN.

JOURNAL BOX.

APPLICATION FILED JAN. 5 1912. 1,101,831 Patented June 30,1914.

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R. H. BOWEN.

JOURNAL BOX.

APPLICATION FILED JAN. 5, 1912.

1,101,831 I Patented June 30,1914.

2 SHEETSSHEET 2.

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UNITED STATES'iPENT ()F RUSSELL H. BOWEN, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE AMERICAN PULLEY COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A COR- PORATION OF PENNSYLVANIA.

J OUBNAL-BOX.

Specification of Letters Patent.

Patented June 30, 1914.

Application filed January 5, 1912. Serial No. 669,557.

To all whom it may concern Be it known that I, RUssELL I-I. BowuN, of Philadelphia, in the county of Philadelphia and State of Pennsylvama, have 1nvented certain new and useful Improvements in Journal-Boxes, whereof the following 1s a specification, reference being had to the accompanying drawings.

One object of my invention is to permit the construction of a journal box from relatively light sheet steel of substantially umforni thickness throughout, the characteristlc structural features, about to be described, being obtained by pressing the sheet metal into the proper shape. The purpose of said structural features is to insure the proper strength, especially at certain critical regions, with a minimum amount of metal in the shell of the journal box, and also to permit self-adjustment of the parts to the extent desirable. Hence the box or casing, in itself, is relatively light in weight, while still possessing all the endurance which has heretofore been sought to be obtained by the use of much heavier metal structures intended for the same general purpose. The parts can be economically constructed and readily assembled, and, when combined, afford the most desirable conditions for self adjustment of the parts.

Referring to the drawings, Figure I, represents a top or plan view of a journal box embodying my invention, a portion of the shaft or journal being also indicated in this as well as the other figures. Fig. II, is a vertical longitudinal section through the axis of the box. Fig. III, is a top or plan view of the lower member of the box with the upper member removed. Fig. IV, is an end view, in elevation. Fig. V, is a transverse vertical section on the line V, V, of Fig. I. Fig. VI, is a transverse vertical section on the line VI, VI, of Fig. I.

The external casing of the box comprises a lower element 1, and an upper element 2, the former of which, for purpose of convenience, may be termed the trough, and the latter the cover. Each of these elements is preferably made of an integral piece of sheet metal of substantially uniform thickness, and since the details of the configuration are intended to be attained by pressing the metal into the desired shape, it will be noted that protuberances upon one face correspond with recesses upon the other. The side walls of the trough 1, extend upward somewhat beyond the horizontal axial plane of the journal or shaft 4, as shown in the sectional views, and are rectilinear at their upper edges. Throughout a considerable region adjacent to the longitudinal center of the trough the walls are substantially vertical, as shown at 11, in Figs. IV, and V, said vertical portions however, having a rounded configuration where they merge into the bottom portion 12, which is generally horizontal at said central region. The extremities of the trough adjacent to each end of said straight walls 11, are approximately semi-cylindrical, as shown at 18, in Fig. IV, the ends being turned inwardly, as shown at 14, and terminating in semi-circular apertures 15, of appropriate diameter to receive the shaft 4.

At the regions where the vertical walls 11, merge into the semi-cylindrical end portions 13, outwardly projecting channels 16, are formed, extending across the bottom of the trough, so as to afiord oil receptacles, to supply the usual oiling rings 5. The bottom of the trough at the region 12, intermediate between these channels is generally horizontal, but has, at its central region, a horizontal annular inward projection 17, within which there is a horizontal annular outward depression 18, surrounding a circular recess in the exterior of the bottom, which recess forms a corresponding rounded internal projection 19.

Within the trough 1, is seated the internal lower shell 3, which is semi-cylindrical throughout the greater portion of its length, and is provided with relatively wide lateral flanges 31, along its upper edges, adapted to fit loosely within the walls of the trough 1. Said lower shell is constructed integrally of sheet metal of substantially uniform thickness, and since its details of construction are tit attained by pressing the metal into shape, it will be noted that as in the instance of the casing, protuberances upon one face correspond to depressions upon the other. At the region adjacent to the longitudinal center of said shell, an externally projecting depression 32, is formed in the bottom thereof, said depression being provided with a central circular inward projection 33, whose recessed under surface conforms to the proximate surface of the rounded projection 19, upon the trough 1, and is adapted to rest freely thereon, so as to be capable of a slight rocking motion, while maintaining its general position relatively thereto. Said depression 32, is extended upward on each side of the central region of the shell, but, as it approaches the upper edge, it is bifurcated, forming elongated outward projections 34, and 35, and an intermediate inward projection 36, at each side. Semi-circular openings 38, are formed at intervals corresponding to the positions of the oil receptacles 16, so as to permit the passage of the oiling rings 5.

When the shell 3, is placed in position in the trough 1, the bearing surfaces between these two members are the parts 33, and 19, adjacent to the central region of each thereof, and since there is a slight play between the flanges 31, and the internal surtaces of the walls 11, the shell 3, can adjust itself within certain limits by the rocking play of the bearing surfaces.

The cover 2 (also made integrally of sheet metal of substantially uniform thickness), is generally of semi-cylindrical form, of less diameter than the trough 1, and having laterally projecting rectilinear flanges 21, along each edge, of such extent as to fit loosely within the walls of the trough. Said flanges terminate at a distance from each extrel'nity, about equal to the thickness of the end walls of the trough 1, as shown at 26, so that the ends of the cover are flush with those of the trough. The cover is formed with externally projecting semiannular channels 22, corresponding in loca tion to the openings 38, in order to receive the oil rings 5, and has at its central. region an externally projecting dished portion 23, at whose center is a circular inwardly projecting rounded recess 2%. Said recess 24-, and the corresponding rounded recess 19, in the bottom of the trough 1, are adapted to form seats for the ends of the set screws by which the journal box is held at top and bottom. channels 22.

The cover 2, and the internal. shell 3, are provided with linings 4-0, and 4:1, respectively, of Babbitt metal, or other suitable material, which are cast into such shape as to lit closely within the interior of each of these parts, so that said linings although re- Uil. holes 25, are provided in themovable, are retained in position at the longitudinal central region by the several protuberances and depressions above described as characteristic of the cover 2, and shell 3. The configuration of these linings at the various regions is shown clearly in the sectional views Figs. II, V, and VI, it being also noted that if desired, the cover 2, and the internal shell 3, may be formed with holes 6, and 7 respectively, into which lugs 4L3, and 44, of the linings may extend, so as to retain said linings in position. The Babbitt metal or other similar lining material, is high in compression strength, and as it is seated in the various depressed portions of the internal shell which are adjacent to the central region, it assists the resistance to collapsing pressure, at the critical points of application of the set screws which. clamp the box in position in the hanger.

Having thus described my invention, I claim 1. In a journal box, the combination of a trough having at the bottom of its longitudinal central region a rounded internal projection; an internal lower shell formed integrally of sheet metal of substantially uniform thickness, provided. with lateral flanges along its upper edges, adapted to fit within the walls of the trough, and having at the bottom of its longitudinal central region, an inwardly pro ecting rounded recess,

said recess being surrounded by an externally projecting corrugation having bifur cated extensions on each side, which extend upwardly toward the flanges; a cover having at its longitudinal central region an in wardly projecting recess, and adapted to fit upon the lower shell; and hearing pieces whose external surfaces correspond with the protuberances and depressions situated at the longitudinal central region of the lower shell and cover respectively.

2. In a journal box formed of sheet metal of substantially uniform thickness, the com bination of an external lower trough having at its ends upwardly extending semi-annular flanges, and at the bottom of its longitudinal central region, an inwardly projecting recess, forming a rounded internal. projection; an annular outward projection surrounding said recess, and an annular inward projection surrounding said outward projection; a lower shell formed integrally of sheet metal of substantially uniform thickness having lateral flanges adapted to fit within the trough, and having, at the bottom of its longitudinal central region, an inwardly projecting rounded recess adapted to bear upon the rounded internal projection of the trough, and having also an outward projection surrounding said recess and extended upward in each side of the shell; a cover adapted to fit within the trough, and having at its longitudinal central region an insigned my name at Philadelphia, Pennsyl- Wardly projecting pecess; and bearing pfiecfis Vania, this third day of January, 1912. Whose external sur aces correspond Wit t e protuberances and depressions situated at RUSSELL BOVVEN' 5 the longitudinal central region of the lower Witnesses:

shell and cover respectively. JOHN W. MUIR,

In testimony whereof, I have hereunto J OSEPH ENTWISLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

